Journal of building engineering最新文献

{"title":"Sustainable mortars incorporating waste plum stone biochar: Effects of cement type on fresh properties, mechanical performance, microstructure, and dielectric response","authors":"Anja Terzić,Zorica Lopičić,Jovica Stojanović,Marija Marković,Dragan Radulović,Jelena Dinkić,Antonije Đorđević","doi":"10.1016/j.jobe.2026.117499","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117499","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"11 1","pages":"117499"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149088107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Compressive behavior and confinement mechanism of L-shaped tie-reinforced CFST columns","authors":"Xinlei Lv,Qingfang Lv,Shuyun Yi,Yujie Lu","doi":"10.1016/j.jobe.2026.117524","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117524","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"11 1","pages":"117524"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149088101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Affordable construction of topology optimized reinforced concrete through fabric formwork","authors":"Mark Hellrich,Abhinit Sati,Jackson L. Jewett,Edward Chien,Emily Whiting,Josephine V. Carstensen","doi":"10.1016/j.jobe.2026.117472","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117472","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"36 1","pages":"117472"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149088111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochar as internal CO2 carrier for enhanced carbonation of cement-based materials: Role of pore structure characteristics","authors":"Mengyu Zhu, Hongcun Guo, Yanfei Zhu, Yao Yao","doi":"10.1016/j.jobe.2026.117486","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117486","url":null,"abstract":"Biochar has been explored as a porous additive to enhance carbonation of cement-based materials and mitigate the diffusion limitations caused by surface CaCO<ce:inf loc=\"post\">3</ce:inf> precipitation. However, the specific influences of biochar pore structure characteristics on internal carbonation and internal-external synergistic carbonation remain unclear. In this study, four biochars with different micropore development and pore size distribution were pre-saturated with CO<ce:inf loc=\"post\">2</ce:inf> and incorporated into cement paste to systematically evaluate their roles as internal CO<ce:inf loc=\"post\">2</ce:inf> carriers. After the designed curing system, multi-scale characterization including thermogravimetric analysis (TGA), X-ray diffraction (XRD), mercury intrusion porosimetry (MIP), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), and compressive strength testing was conducted to elucidate the effects of biochar pore structure characteristics on carbonation efficiency and mechanical performance. Results revealed that modified biochars with hierarchical porous structures (CS1, CS2) significantly outperformed pyrolytic biochars with limited pore development (BB, SD) in both internal and synergistic carbonation. In interior regions (16-20 mm), CO<ce:inf loc=\"post\">2</ce:inf>-saturated CS1 and CS2 increased CaCO<ce:inf loc=\"post\">3</ce:inf> content by 18.44% and 20.82%, respectively compared to their unsaturated counterparts, while pyrolytic biochars showed negligible improvement. SEM-EDS confirmed in-situ CaCO<ce:inf loc=\"post\">3</ce:inf> formation at biochar-cement interfaces. Notably, CS1 achieved optimal synergistic carbonation with 30.79%-50.00% CO<ce:inf loc=\"post\">2</ce:inf> uptake enhancement across all depths (0-20 mm). Despite lower CO<ce:inf loc=\"post\">2</ce:inf> adsorption capacity than CS2, CS1's superior performance was attributed to its more balanced micropore-mesopore distribution and higher total pore volume, which facilitated both external CO<ce:inf loc=\"post\">2</ce:inf> diffusion and the release of pre-adsorbed CO<ce:inf loc=\"post\">2</ce:inf>. CO<ce:inf loc=\"post\">2</ce:inf>-saturated CS1 achieved the best overall performance with 17.52% porosity reduction and 28.2% strength increase compared to reference paste. These findings demonstrate that optimized hierarchical porous structure, rather than maximum adsorption capacity, governs the effectiveness of biochar as internal CO<ce:inf loc=\"post\">2</ce:inf> carriers for enhanced carbonation in cement-based materials.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"11 1","pages":"117486"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance Validation of Non-Calcined Water Treatment Sludge Geopolymer for Non-Load-Bearing Masonry Application","authors":"Saadoon Obaid Eyada,Ahmed Rahomi Rajab,Ahmed Hazim Abdulkareem,Sadoon Abdallah,Kamil Saad Kamil","doi":"10.1016/j.jobe.2026.117548","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117548","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"11 1","pages":"117548"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking the superior potential of perovskite solar cells in urban built environments: A high-resolution numerical study in Tokyo","authors":"Tomoya Kawashima-Hirano,Akito Ozawa,Kazuki Yamaguchi,Yuya Takane,Tomohiko Ihara","doi":"10.1016/j.jobe.2026.117536","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117536","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"183 1","pages":"117536"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A prediction method for the non-steady-state chloride migration coefficient of 3D-printed concrete integrating TVAE-based data augmentation and PCA-based dimensionality reduction","authors":"Haoran Liu, Yushan Wei, Jianzhuang Xiao, Haifeng Yang, Wangkai Chen, Meiyan Bai","doi":"10.1016/j.jobe.2026.117475","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117475","url":null,"abstract":"The layer-by-layer deposition process of 3D-printed concrete (3DPC) results in more complex chloride penetration behavior than that of mould-cast concrete, making traditional durability analysis models difficult to apply. Moreover, the difficulty in obtaining experimental data further restricts systematic investigations. In this study, a dataset comprising 132 groups of experimental data was established, with 16 parameters related to material composition, printing process, and environmental conditions used as input features, and the Non-steady-state chloride migration coefficient used as the output variable. A Tabular Variational Autoencoder (TVAE) was introduced for data augmentation, while Principal Component Analysis (PCA) was employed for linear dimensionality reduction. Six machine-learning prediction models were developed. The results indicate that TabPFN and XStacking achieve significantly higher prediction accuracy than conventional tree-based models, with TabPFN exhibiting superior robustness and low-error prediction ratios. PCA reduces the original 16-dimensional feature space to seven principal components, which retain 86.3% of the variance in the input features while reducing the dimensionality of the subsequent modeling task. Feature importance analysis based on SHapley Additive exPlanations reveals that retarder admixture, limestone powder, and printing direction are the key factors. This study provides a highly accurate and interpretable prediction tool for the durability-oriented design of 3DPC.","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"84 1","pages":"117475"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular Dynamics Simulation of Microbial CaCO3 Nucleation and Interfacial Bonding with Cement Hydrate Surfaces in Self-Healing Composites","authors":"M. Omar Osta,Faisal Mukhtar,Asad Hanif,Md. Hasan Zahir","doi":"10.1016/j.jobe.2026.117426","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117426","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"11 1","pages":"117426"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149088094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on mechanical properties of CFRP-confined lithium slag rubberized concrete under triaxial compression","authors":"Jiongfeng Liang,Yunchen Wang,Yujiao Qin,Caisen Wang,Haizhong Zhang,Mingdong Li","doi":"10.1016/j.jobe.2026.117487","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117487","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"405 1","pages":"117487"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149092308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-temperature seismic performance of Q690 beam-column connections with replaceable energy dissipation design","authors":"Jin Jiang,Chao Xue","doi":"10.1016/j.jobe.2026.117561","DOIUrl":"https://doi.org/10.1016/j.jobe.2026.117561","url":null,"abstract":"","PeriodicalId":15064,"journal":{"name":"Journal of building engineering","volume":"8 1","pages":"117561"},"PeriodicalIF":6.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149150170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}